/Engine/Source/Editor/AddContentDialog/Public/FeaturePackContentSource.h
void BuildListOfAdditionalFiles ( [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & AdditionalFileSourceList, [TArray](API\Runtime\Core\Containers\TArray)< [FString](API\Runtime\Core\Containers\FString) > & FileList, bool & bContainsSourceFiles )